Urban space is increasingly morphing into a billboard for messages that are all too frequently of a commercial kind. The use of light through to moving images made of light plays an important role here. The layers added to the urban world are increasingly manipulating perception, replacing reality by images of reality and as a consequence unnoticed by many changing the city and our perception of it. Urban three-dimensional space becomes "invisible", with two-dimensional images superimposed over it, images that are artificial and can be manipulated.

The work of Berlin studio Mader Stublic Wiermann reflects these processes and shift our perception in and of the city. Buildings are covered by a layer of thin, vertical LED rods. The layer remains transparent, and does not conceal the city, but complement it. The projections are abstract structures and grids that expand those old facades beneath and then let it re-emerge. The light installations that depict abstract moving patterns essentially comment on, change, estrange or even question the underlying architecture.